Sure! Learning how to draw from scratch is fun, but if you want solid results in one month, I recommend using one of the many free libraries of assets online. Open Game Art, Pexels, freepik and many others - I'm sure you can find something fitting your game after looking for a while.
In some cases, it might be possible to get great results in a month by just using references and trying to recreate them - especially useful with pixel art or very simple 2D art. In this case, download GIMP or other free art software and try to copy someone else's work at first just to learn how they did it, then do your own. It might be hard with more advanced digital painting style, though.